Technology and Service:1.Seller supply full set of technical document, cutter and other full document (write in English). 2.Seller supply training for buyer's staff until buyer can produce the eligible production independently. 3. Seller is responsible for installing, testing, adjusting and commissioning the machines in buyer's factory.4.Buyer should pay the expense for our engineers including for our engineer including round-way tickets, inland traffic, lodging and boarding fee when the machine is installed, tested and maintained.5. Seller will go to install machines after the machine is arrived at buyer and buyer will have prepared all conditions (including power, water, compress air, tools and materials for producing pipe, etc) for installing and testing these machines. Buyer should pay 100USD/day.